<!DOCTYPE html>
<html lang="en">

<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Document</title>
	<style>
		.radial-gradient-circle {
			width: 200px;
			height: 200px;
			/* 使div成为圆形 */
			border-radius: 50%;
			background-image: radial-gradient(yellow, transparent);
		}
	</style>
</head>

<body>
	<div class="radial-gradient-circle"></div>
</body>

</html>